Home / 862,785.20-1,294,064.40-263,806.40

Finding the Fourth Proportional to 862,785.20, 1,294,064.40 and 263,806.40

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Solution

The fourth proportional to 862,785.20, 1,294,064.40 and 263,806.40 is: 395,674.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,785.20 : 1,294,064.40 = 263,806.40 : x
  2. Step 2: Convert to fraction form
    862,785.20/1,294,064.40 = 263,806.40/x
  3. Step 3: Cross multiply
    862,785.20x = 1,294,064.40 × 263,806.40
  4. Step 4: Simplify right side
    862,785.20x = 341,382,470,732.16
  5. Step 5: Solve for x
    x = 341,382,470,732.16/862,785.20
  6. Step 6: Final answer
    x = 395,674.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.